Denon S-301 Service Manual page 47

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M66005-0001AHP (IC301: 1U-3681)
DIG15/SEG39
DIG14/SEG38
DIG13/SEG37
DIG12/SEG36
BLOCK DIAGRAM
CS
14
Serial
receive
SCK
15
circuit
SDATA
16
XIN
21
Clock
generator
XOUT
20
RESET
13
Vcc1
19
Vcc2
60
Vss
22
Vp
32
49
SEG02
SEG01
50
51
SEG00
Vcc2
52
53
54
55
56
M66005-0001AHP
57
DIG11
DIG10
58
59
DIG09
60
DIG08
DIG07
61
DIG06
62
DIG05
63
DIG04
64
Display code RAM
Bank 1 : 8bit x 16
Bank 2 : 8bit x 64
code
write
Code/
data
command
control
circuit
・ ・
timing
Display
clock
controller
CGROM
(35bit x 160)
CGRAM
dot data
(35bit x 16)
write
code
select
scan pulse
2
47
32
SEG19
31
SEG20
30
SEG21
SEG22
29
28
SEG23
SEG24
27
SEG25
26
SEG26
25
24
Vp
23
SEG27
22
SEG28
21
SEG29
20
SEG30
SEG31
19
18
SEG32
SEG33
17
. . .
. . .
59
Segment
33
output
. . .
. . .
31
circuit
24
23
Segment/
64
Digit
63
select/
62
output
circuit
61
12
. .
Digit
. .
output
.
.
circuit
1
18
17
S-301
. . .
SEG00
SEG26
. . .
SEG27
SEG34
SEG35
DIG12/
SEG36
DIG13/
SEG37
DIG14/
SEG38
DIG15/
SEG39
DIG00
. .
.
DIG11
P0
P1

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